By 2020 the U.S. will be short 91,000 doctors. There's no way we can educate enough doctors to make up that shortfall, and other countries are far worse off.

I don't think the space station is innovative. Going to the moon was innovative because we had no idea how to do it.

I'm not saying we don't have our set of problems - climate crisis, species extinction, water and energy shortage - we surely do. But ultimately we knock them down.

When cars have the sensory systems around them, GPS intelligence, they're looking at the world not only in visual spectrum, but infrared, ultraviolet and everything else that's going on and they've got reaction times in microseconds. Not a tenth of a second. They're a hundred thousand times faster.

Eight billion people will have Internet access by 2020.

We have these 100 mms delays, you know, our attention is on our PDA, we're always in a rush. We drive around in these 4,000 pound metal wombs, these 4,000 pound containment systems to protect us from these 6,000 pound cars from smacking us.

Super-ambitious goals tend to be unifying and energizing to people; but only if they believe there's a chance of success.